fix(agent): retain and display user messages immediately upon first send, improving user experience

CHANGELOG.md

@@ -5,6 +5,7 @@
 + [新增] 画布右侧Agent支持按当前账号可用范围选择Codex 模型与推理强度。
 + [优化] Canvas Agent 升级至最新 Codex，启动时检查版本更新，
 + [优化] 统一通过公共日志输出 Info 以上信息，美化转发日志时间。
++ [修复] Agent首次发送消息时立即保留并展示用户内容，不再晚于思考状态。
 
 ## v0.12.0 - 2026-07-30
 

web/src/components/agent/local-agent-panel.tsx

@@ -231,7 +231,7 @@ export function LocalAgentPanel({ embedded, headless, autoConnect }: { embedded?
             enqueueEvent(async () => {
                 const nextThreadId = data.activeThreadId ?? data.threadId ?? "";
                 const current = useAgentStore.getState();
-                const keepPendingMessage = Boolean(data.emptyThread && current.sending && current.activeThreadId === nextThreadId);
+                const keepPendingMessage = Boolean(data.emptyThread && current.sending && current.messages.some((message) => message.role === "user"));
                 pendingToolRef.current = null;
                 setAgentState({ activeThreadId: nextThreadId, ...(keepPendingMessage ? {} : { messages: [] }), tokenUsage: null, pendingTool: null, pendingApprovals: [] });
                 if (!data.draftThread) await loadThreads(Boolean(data.emptyThread));